Convert Kilometers per Liter to Miles per Gallon (UK)

Whether you need to express a value in mpg UK instead of km/L, this guide walks you through the exact steps. Fuel economy is expressed differently worldwide: the US uses miles per gallon, Europe often uses liters per 100 kilometers, and efficiency can also be stated as kilometers per liter.

Formula: Multiply the kilometers-per-liter value by 2.82480936. In equation form: mpg UK = km/L × 2.82480936.

One kilometers per liter equals approximately 2.824809 mpg UK. This means you can multiply any km/L value by 2.824809 to get the equivalent in mpg UK.

For instance, converting 25 km/L gives 70.620234 mpg UK. Try different values using the quick-value chips or type directly into the input field.

Common mistake: Higher mpg means better efficiency, but lower L/100km also means better efficiency — these scales run in opposite directions, so do not compare the numbers directly without converting.

Bookmark this page for quick km/L to mpg UK conversions, or use the swap button to reverse the direction and convert mpg UK back to km/L.